12645233 has 4 divisors (see below), whose sum is σ = 12709620. Its totient is φ = 12580848.

The previous prime is 12645197. The next prime is 12645257. The reversal of 12645233 is 33254621.

12645233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33254621 = 293 ⋅113497.

It can be written as a sum of positive squares in 2 ways, for example, as 10975969 + 1669264 = 3313^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 12645233 - 2⁶ = 12645169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12645533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31898 + ... + 32291.

It is an arithmetic number, because the mean of its divisors is an integer number (3177405).

Almost surely, 2^12645233 is an apocalyptic number.

It is an amenable number.

12645233 is a deficient number, since it is larger than the sum of its proper divisors (64387).

12645233 is an equidigital number, since it uses as much as digits as its factorization.

12645233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64386.

The product of its digits is 4320, while the sum is 26.

The square root of 12645233 is about 3556.0136388940. The cubic root of 12645233 is about 232.9747987995.

Adding to 12645233 its reverse (33254621), we get a palindrome (45899854).

The spelling of 12645233 in words is "twelve million, six hundred forty-five thousand, two hundred thirty-three".